VoIP (Voice Over Internet Protocol) allows you to communicate via voice, video chats and instant messages. The most popular VoIP service is Skype, which allows you call other Skype users for free, or make regular phone call at reduced rates. There are also free VoIP applications too like Linphone, Empathy, Ekiga, Google Talk and Redphone (Android only).

Want to make a phone call without revealing your real identity? There are several ways you can do this, ranging from using a throw-away phone to restricting caller ID settings permanently on your smartphone. But what if you just want to make private, anonymous calls occasionally, without purchasing a special phone for it? Here are two solutions. Use a Caller …

Android phones and tablets have come with built-in encryption support for several years. Since the Android Lollipop release in 2014 encryption has even been turned on by default. But that doesn’t necessarily mean your Android personal data is secure. There are additional steps you should take to prevent access to your data in case your device is stolen. Here’s what …

Chinese Internet censors have become more proactive in recent years about blocking VPN usage through the Great Firewall. But it’s still possible to use a VPN in China. Here are tips on how to work around VPN blocking. This isn’t an article about how to use a VPN in general. We assume you already have VPN software configured on your …